Bookmaking



E. LARNEY Nov. 26, 19 l:

* BOOKMAKING Filed Dec. 28, 1938 Patented Nov. 26, 1940 BOOKMAKINGEdward Larney, Narberth, Pa., assignor to The C'urtis PublishingCompany, Philadelphia, Pa, a corporation of Pennsylvania ApplicationDecember 28, 1938, SerialNo. 248,029

6 Claims.

Books or magazines having square backs derived from peaked backs areknown and are referred to in Letters Patent No. 2,066,620 of January 5,1937.

Heretofore cover presses, either for second side or two side printing,deliver a fiat sheet including four complete magazine covers (four pageseach). These sheets are out on a guillotine cutter into separate fourpage covers. The fiat covers are loaded on to a cover feed board, combedout and each cover is dropped on to a collated magazine which has beensquare backed, stapled and glued. As the completed book is delivered thecover backbone assumes to some extent the shape of the book. However,there are variations in positioning of the edge of the front coversubject, and there is a rounded appearance of the cover backbone so thatit does not conform to the square backed book.

The principal object of the present invention is to obviate the abovementioned defects and disadvantages and to provide books of thecharacter indicated with covers also presenting square backs. This isdone in such manner that where the printed matter extends to the edge ofthe cover, or bleed subjects, as they are called, are displayed, theprinted matter or bleed subjects are confined to the cover and do notextend to the backbone where they would present an unsightly appearance.

Another object of the invention is to provide for printing and dryingcovers on both sides of the Web on a press equipped with a folder unitadapted to deliver complete individual covers 35 having a single foldaccurately positioned along one edge of the backbone, thereby greatlyspeeding production.

According to the present invention covers are printed and dried on bothsides of the web on a drying press equipped with a folder unit and theindividual covers have a single fold positioned accurately alongwhatwill be one edge of the backbone of the finished book. A secondcrease fold parallel with the first fold is made, using the first foldas a guide, and in that way the back of the cover is made square inconformity with the back of the book and with the bleed subject clear ofthe backbone of the cover and confined 50 to the back or front of thebook.

In the following description reference will be made to the accompanyingdrawing which illustrates one type of apparatus selected from othertypes and adapted for the practice of the invention.

In the drawing Figure l is a diagrammatic view showing that thepress-folded covers are given a second fold using the first fold as aguide.

Figs. 2,, 3 and 4 are diagrammatic cross sec- 5 tional viewsillustrating a rotary box feeder from which the press covers having asingle fold are delivered to receive a second fold aligned with thefirst fold.

Fig. 5 is a view illustrating the making of the 10 second fold.

Fig. 6 is a view illustrating the application of the twice folded coverto the square back of the book, and.

Fig. 7 is an end view of the finished book or 15 magazine.

Referring to the drawing the square backed books or magazines 0, arecarried along from right to left in Fig. 1 by impellers 2 on suitableconveyers 3.- Above the conveyor 3 there is a saddle bar 4generally'rectangular in cross section although'somewhat pointed at theend 4*. This saddle bar at the right hand portion is arranged with itsmajor axis at an angle of about as indicated in Figs. 4 and 5,thereafter, by reason of a twist in it, it assumes the position shown inFig. 6 with its longer axis vertical. 5, 6 and 1 indicate a set ofdriven rolls arranged to exert pressure on the sides and top of thecover. 8 is a glue roll which applies glue to the back of the assembledbooks a, as they pass beneath it.

The covers having a single fold applied at the press and with flaps ofuneven length are supplied in the rotary feeder 9. From the box feeder 9the covers are fed into the position indicated in Fig. 2 by the belt inand roll II and its accessory l2 so that the longer lap is gripped bythe roll l3 which ultimately transfers it into the position indicated inFig. 4 where the ends of its fiap are held in the gripper rolls l3 andI4. Box feeders are not new and Figs. 2. and 3 merely diagrammaticallyrepresent their operation. As shown in Fig. 4 the cover I) is indicatedin dotted lines with its single fold b and with its longer flap 1)positioned by the revolution of the rolls l3 and I4, and with therelease of the'fingers of the rolls l3 and Hi the cover is dropped on tothe inclined portion of the saddle bar 4. I5 is a deflector for keepingthe cover away from the glued portion of the book a. After the cover isin the position indicated in Fig. 4 it is carried along by the impeller2 with the book. In passing thru the set of rolls 5, 6 and 1 a secondfold b is put into the cover, the first fold serving as a guide for thesecond fold. At the left hand end of the saddle bar 4 the cover isdropped on to the book by running off the end of the saddle bar.

In connection with the foregoing description it may be remarked that thefolding mechanism of the press accurately locates the first fold b inthe cover, if desired making one flap to conform in size With the sizeof the book and making the other flap of a width somewhat greater for apurpose to be described. The second crease fold is accurately positionedbecause it is located by the first press fold, in this way a printedsubject or bleed on the face or back of the magazine does not extend tothe backbone of the cover. The purpose or object in making one flap ofthe cover wider than the other is to enable the application of covers tobooks or magazines of different thicknesses, and with differentthicknesses of magazines different and appropriate saddle bars areemployed. The unbound edges of the cover are of course trimmed.

It will be obvious to those skilled in the art that modifications may bemade in details of procedure and in'matters of mere form withoutdeparting from the spirit of the invention which is not limited as tosuch matters or otherwise than the prior art and the appended claims mayrequire.

I claim: 1

l. The method of applying press folded covers to magazines having squarebacks which consists in single folding a cover at one edge of theportion which will be the backbone of the magazine, second creasefolding the cover at the other edge of the portion which will be thebackbone of the magazine and parallel with the first single fold byusing the first fold as a guide in making the crease of the second fold,and mounting the twice-folded cover on to the back of the book.

2. In the method of applying press folded covers to magazines havingsquare backs, the improvement which consists in single folding a coverat one edge of the portion which will be the backbone of the magazine,and second crease folding the cover at the other edge of the portionwhich will-be the backbone of the magazine and parallel with the firstsingle fold by using the first fold as a guide in making the crease ofthe second fold.

3. The method of applying press-folded covers to magazines having squarebacks which consists,

' in single-folding the cover at one edge of the portion which will bethe backbone of the book providing a flap of substantially the Width ofthe book and a wider flap, second-folding the cover at the other edge ofthe portion which will be the backbone of the book using the first foldas a guide in making the second fold thereby accommodating books ofdifferent thicknesses, and mounting the twice-folded cover on the squareback of the book and trimming the wider flaps.

'4. In the method of applying press-folded covers to magazines havingsquare backs, the improvement which consists in single-folding the coverat one edge of the portion which will be the backbone of the bookproviding a flap of substantially the width of the book and a widerflap, and second-folding the cover at the other edge of the portionwhich will be the backbone of the book using the first fold as a guidein making the second fold thereby accommodating a book of a selectedthickness.

5. The method of applying covers to magazines having square backs whichconsists in pressfolding a printed and dried cover, mounting the firstfold upon the peak provided by one corner of a warped rectangularsupport, with the cover astride the support, creasing a second fold byapplying pressure in three directions to the cover on the support,guiding the double-folded cover to upright position and dropping 'it ona book by shifting it over and past an upright portion of the support. Ig

6. In the method of applying covers to magazines having square backs theimprovement which consists in press folding a printed and dried cover,mounting the folded cover upon a rectangular support with the first foldin engagement with an edge of the support, and creasing a second fold byapplying pressure in three directions to the cover while located apartfrom the magazine, and guiding the cover by the first fold.

' EDWARD LARNEY.

